12731b9a8SJean-Christophe PLAGNIOL-VILLARD /* 22731b9a8SJean-Christophe PLAGNIOL-VILLARD * (C) Copyright 2006 32731b9a8SJean-Christophe PLAGNIOL-VILLARD * DENX Software Engineering <mk@denx.de> 42731b9a8SJean-Christophe PLAGNIOL-VILLARD * 52731b9a8SJean-Christophe PLAGNIOL-VILLARD * See file CREDITS for list of people who contributed to this 62731b9a8SJean-Christophe PLAGNIOL-VILLARD * project. 72731b9a8SJean-Christophe PLAGNIOL-VILLARD * 82731b9a8SJean-Christophe PLAGNIOL-VILLARD * This program is free software; you can redistribute it and/or 92731b9a8SJean-Christophe PLAGNIOL-VILLARD * modify it under the terms of the GNU General Public License as 102731b9a8SJean-Christophe PLAGNIOL-VILLARD * published by the Free Software Foundation; either version 2 of 112731b9a8SJean-Christophe PLAGNIOL-VILLARD * the License, or (at your option) any later version. 122731b9a8SJean-Christophe PLAGNIOL-VILLARD * 132731b9a8SJean-Christophe PLAGNIOL-VILLARD * This program is distributed in the hope that it will be useful, 142731b9a8SJean-Christophe PLAGNIOL-VILLARD * but WITHOUT ANY WARRANTY; without even the implied warranty of 152731b9a8SJean-Christophe PLAGNIOL-VILLARD * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 162731b9a8SJean-Christophe PLAGNIOL-VILLARD * GNU General Public License for more details. 172731b9a8SJean-Christophe PLAGNIOL-VILLARD * 182731b9a8SJean-Christophe PLAGNIOL-VILLARD * You should have received a copy of the GNU General Public License 192731b9a8SJean-Christophe PLAGNIOL-VILLARD * along with this program; if not, write to the Free Software 202731b9a8SJean-Christophe PLAGNIOL-VILLARD * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 212731b9a8SJean-Christophe PLAGNIOL-VILLARD * MA 02111-1307 USA 222731b9a8SJean-Christophe PLAGNIOL-VILLARD */ 232731b9a8SJean-Christophe PLAGNIOL-VILLARD 242731b9a8SJean-Christophe PLAGNIOL-VILLARD #include <common.h> 252731b9a8SJean-Christophe PLAGNIOL-VILLARD 262731b9a8SJean-Christophe PLAGNIOL-VILLARD #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) 272731b9a8SJean-Christophe PLAGNIOL-VILLARD 2886592f60SReinhard Meyer #include <asm/io.h> 292731b9a8SJean-Christophe PLAGNIOL-VILLARD #include <asm/arch/hardware.h> 302731b9a8SJean-Christophe PLAGNIOL-VILLARD #include <asm/arch/at91_pmc.h> 31dc39ae95SJean-Christophe PLAGNIOL-VILLARD #include <asm/arch/clk.h> 322731b9a8SJean-Christophe PLAGNIOL-VILLARD 332731b9a8SJean-Christophe PLAGNIOL-VILLARD int usb_cpu_init(void) 342731b9a8SJean-Christophe PLAGNIOL-VILLARD { 35372f2783SReinhard Meyer at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC; 362731b9a8SJean-Christophe PLAGNIOL-VILLARD 372731b9a8SJean-Christophe PLAGNIOL-VILLARD #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \ 38faa14babSRONETIX - Ilko Iliev defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20) || \ 39faa14babSRONETIX - Ilko Iliev defined(CONFIG_AT91SAM9261) 402731b9a8SJean-Christophe PLAGNIOL-VILLARD /* Enable PLLB */ 410701f730SMatthias Fuchs writel(get_pllb_init(), &pmc->pllbr); 420701f730SMatthias Fuchs while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB) 432731b9a8SJean-Christophe PLAGNIOL-VILLARD ; 44*bcfc8976SRichard Genoud #elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) || \ 45*bcfc8976SRichard Genoud defined(CONFIG_AT91SAM9X5) 4664203c7bSSergey Matyukevich /* Enable UPLL */ 4764203c7bSSergey Matyukevich writel(readl(&pmc->uckr) | AT91_PMC_UPLLEN | AT91_PMC_BIASEN, 4864203c7bSSergey Matyukevich &pmc->uckr); 4964203c7bSSergey Matyukevich while ((readl(&pmc->sr) & AT91_PMC_LOCKU) != AT91_PMC_LOCKU) 5064203c7bSSergey Matyukevich ; 5164203c7bSSergey Matyukevich 5264203c7bSSergey Matyukevich /* Select PLLA as input clock of OHCI */ 5364203c7bSSergey Matyukevich writel(AT91_PMC_USBS_USB_UPLL | AT91_PMC_USBDIV_10, &pmc->usb); 542731b9a8SJean-Christophe PLAGNIOL-VILLARD #endif 552731b9a8SJean-Christophe PLAGNIOL-VILLARD 562731b9a8SJean-Christophe PLAGNIOL-VILLARD /* Enable USB host clock. */ 57372f2783SReinhard Meyer writel(1 << ATMEL_ID_UHP, &pmc->pcer); 582731b9a8SJean-Christophe PLAGNIOL-VILLARD #ifdef CONFIG_AT91SAM9261 59372f2783SReinhard Meyer writel(ATMEL_PMC_UHP | AT91_PMC_HCK0, &pmc->scer); 602731b9a8SJean-Christophe PLAGNIOL-VILLARD #else 61372f2783SReinhard Meyer writel(ATMEL_PMC_UHP, &pmc->scer); 622731b9a8SJean-Christophe PLAGNIOL-VILLARD #endif 632731b9a8SJean-Christophe PLAGNIOL-VILLARD 642731b9a8SJean-Christophe PLAGNIOL-VILLARD return 0; 652731b9a8SJean-Christophe PLAGNIOL-VILLARD } 662731b9a8SJean-Christophe PLAGNIOL-VILLARD 672731b9a8SJean-Christophe PLAGNIOL-VILLARD int usb_cpu_stop(void) 682731b9a8SJean-Christophe PLAGNIOL-VILLARD { 69372f2783SReinhard Meyer at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC; 700701f730SMatthias Fuchs 712731b9a8SJean-Christophe PLAGNIOL-VILLARD /* Disable USB host clock. */ 72372f2783SReinhard Meyer writel(1 << ATMEL_ID_UHP, &pmc->pcdr); 732731b9a8SJean-Christophe PLAGNIOL-VILLARD #ifdef CONFIG_AT91SAM9261 74372f2783SReinhard Meyer writel(ATMEL_PMC_UHP | AT91_PMC_HCK0, &pmc->scdr); 752731b9a8SJean-Christophe PLAGNIOL-VILLARD #else 76372f2783SReinhard Meyer writel(ATMEL_PMC_UHP, &pmc->scdr); 772731b9a8SJean-Christophe PLAGNIOL-VILLARD #endif 782731b9a8SJean-Christophe PLAGNIOL-VILLARD 792731b9a8SJean-Christophe PLAGNIOL-VILLARD #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \ 802731b9a8SJean-Christophe PLAGNIOL-VILLARD defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20) 812731b9a8SJean-Christophe PLAGNIOL-VILLARD /* Disable PLLB */ 820701f730SMatthias Fuchs writel(0, &pmc->pllbr); 830701f730SMatthias Fuchs while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != 0) 842731b9a8SJean-Christophe PLAGNIOL-VILLARD ; 85*bcfc8976SRichard Genoud #elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) || \ 86*bcfc8976SRichard Genoud defined(CONFIG_AT91SAM9X5) 8764203c7bSSergey Matyukevich /* Disable UPLL */ 8864203c7bSSergey Matyukevich writel(readl(&pmc->uckr) & (~AT91_PMC_UPLLEN), &pmc->uckr); 8964203c7bSSergey Matyukevich while ((readl(&pmc->sr) & AT91_PMC_LOCKU) == AT91_PMC_LOCKU) 9064203c7bSSergey Matyukevich ; 912731b9a8SJean-Christophe PLAGNIOL-VILLARD #endif 922731b9a8SJean-Christophe PLAGNIOL-VILLARD 932731b9a8SJean-Christophe PLAGNIOL-VILLARD return 0; 942731b9a8SJean-Christophe PLAGNIOL-VILLARD } 952731b9a8SJean-Christophe PLAGNIOL-VILLARD 962731b9a8SJean-Christophe PLAGNIOL-VILLARD int usb_cpu_init_fail(void) 972731b9a8SJean-Christophe PLAGNIOL-VILLARD { 982731b9a8SJean-Christophe PLAGNIOL-VILLARD return usb_cpu_stop(); 992731b9a8SJean-Christophe PLAGNIOL-VILLARD } 1002731b9a8SJean-Christophe PLAGNIOL-VILLARD 1012731b9a8SJean-Christophe PLAGNIOL-VILLARD #endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ 102